upgrade ruby-saml gem
upgrade ruby-saml gem

This version fixes the case where a SAML response arrives that doesn't have a
signature around the whole thing, but has a signature in the encrypted
portion.

test plan: Set up SAML and configure it to not sign the entire response, and
to encrypt assertions. Make sure you can still log in.

Change-Id: I3306b5595b82750c344a3c4a229aff1d86bbdde6
Reviewed-on: https://gerrit.instructure.com/10735
Reviewed-by: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Tested-by: Zach Wily <9de8c4480303b5335cd2a33eefe814615ba3612a@instructure.com>

AndranikMarkosyan/lms,narigone/canvas,arrivu/arrivu-lms,jay3126/canvas-lms,greyhwndz/canvas-lms,parbros/red-innovadores-lms,AndranikMarkosyan/lms,merichar/canvas-lms,skmezanul/canvas-lms,snehakachroo1/LSI_replica,shidao-fm/canvas-lms,eCNAP/CANVAS,Rvor/canvas-lms,Unow/ins,whalejasmine/canvas-lms,matematikk-mooc/canvas-lms,skmezanul/canvas-lms,HotChalk/canvas-lms,usmschuck/canvas,efrj/canvas-lms,djbender/canvas-lms,dgynn/canvas-lms,wimemx/Canvas,venturehive/canvas-lms,wrdsb/canvas-lms,wrdsb/canvas-lms,instructure/canvas-lms,Unow/ins,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,narigone/canvas,HotChalk/canvas-lms,rup/Tarrax,SwinburneOnline/canvas-lms,skmezanul/canvas-lms,Unow/canvas-lms,sfu/canvas-lms,Unow/ins,HotChalk/canvas-lms,grahamb/canvas-lms,wye0220/shindig-canvas,instructure/canvas-lms,eCNAP/CANVAS,nditech/red-innovadores-lms,sfu/canvas-lms,shidao-fm/canvas-lms,landonwilkins/canvas-lms,snehakachroo1/LSI_replica,redconfetti/canvas-lms,juoni/canvas-lms,Jyaasa/canvas-lms,arrivu/jigsaw-lms,ShreniiNepal/shrenii_lmp,eCNAP/CANVAS,ankithbti/canvas_lms,greyhwndz/canvas-lms,leftplusrightllc/canvas-lms,Jyaasa/canvas-lms,greyhwndz/canvas-lms,nditech/red-innovadores-lms,redconfetti/canvas-lms,sli7246/canvas_branch,grahamb/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,whalejasmine/canvas-lms,efrj/canvas-lms,gbleydon/canvas-lms,redconfetti/canvas-lms,SwinburneOnline/canvas-lms,arrivu/jigsaw-lms,whalejasmine/canvas-lms,Rvor/canvas-lms,arrivu/arrivu-lms,redconfetti/canvas-lms,sdeleon28/canvas-lms,wye0220/shindig-canvas,jay3126/canvas-lms,djbender/canvas-lms,fronteerio/canvas-lms,samuels410/greatlakes-lms,landonwilkins/canvas-lms,utkarshx/canvas-lms,juoni/canvas-lms,tgroshon/canvas-lms,loganrun/pincan,efrj/canvas-lms,arrivu/qibla-ecampus,va7map/canvas-lms,dgynn/canvas-lms,ShreniiNepal/shrenii_lmp,SwinburneOnline/canvas-lms,Jyaasa/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,arrivu/qibla-ecampus,icelab/canvas,roxolan/canvas-lms,djbender/canvas-lms,loganrun/pincan,va7map/canvas-lms,ShreniiNepal/shrenii_lmp,wrdsb/canvas-lms,arrivu/qibla-ecampus,greyhwndz/canvas-lms,venturehive/canvas-lms,shidao-fm/canvas-lms,HotChalk/canvas-lms,sdeleon28/canvas-lms,fronteerio/canvas-lms,fronteerio/canvas-lms,juoni/canvas-lms,roxolan/canvas-lms,juoni/canvas-lms,arrivu/hoodemo,arrivu/hiring-site,instructure/canvas-lms,grahamb/canvas-lms,samuels410/greatlakes-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,wimemx/Canvas,sdeleon28/canvas-lms,usmschuck/canvas,antoniuslin/canvas-lms,Unow/canvas-lms,usmschuck/canvas,arrivu/hiring-site,dgynn/canvas-lms,merichar/canvas-lms,loganrun/pincan,Jyaasa/canvas-lms,antoniuslin/canvas-lms,sfu/canvas-lms,sdeleon28/canvas-lms,samuels410/greatlakes-lms,sli7246/canvas_branch,arrivu/hoodemo,tgroshon/canvas-lms,antoniuslin/canvas-lms,kyroskoh/canvas-lms,icelab/canvas,va7map/canvas-lms,dgynn/canvas-lms,kyroskoh/canvas-lms,kyroskoh/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,ShreniiNepal/shrenii_lmp,parbros/red-innovadores-lms,landonwilkins/canvas-lms,snehakachroo1/LSI_replica,roxolan/canvas-lms,rup/Tarrax,va7map/canvas-lms,tgroshon/canvas-lms,arrivu/hoodemo,matematikk-mooc/canvas-lms,nditech/red-innovadores-lms,shidao-fm/canvas-lms,ankithbti/canvas_lms,instructure/canvas-lms,narigone/canvas,AndranikMarkosyan/lms,snehakachroo1/LSI_replica,utkarshx/canvas-lms,antoniuslin/canvas-lms,wimemx/Canvas,AndranikMarkosyan/lms,efrj/canvas-lms,sfu/canvas-lms,utkarshx/canvas-lms,rup/Tarrax,gbleydon/canvas-lms,leftplusrightllc/canvas-lms,icelab/canvas,gbleydon/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,merichar/canvas-lms,Rvor/canvas-lms,arrivu/hiring-site,narigone/canvas,roxolan/canvas-lms,Unow/canvas-lms,djbender/canvas-lms,whalejasmine/canvas-lms,samuels410/greatlakes-lms,fronteerio/canvas-lms,skmezanul/canvas-lms,wye0220/shindig-canvas,venturehive/canvas-lms,jay3126/canvas-lms,arrivu/arrivu-lms,eCNAP/CANVAS,ankithbti/canvas_lms,Rvor/canvas-lms,arrivu/jigsaw-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,tgroshon/canvas-lms,usmschuck/canvas,leftplusrightllc/canvas-lms,parbros/red-innovadores-lms,sli7246/canvas_branch,nditech/red-innovadores-lms,kyroskoh/canvas-lms,jay3126/canvas-lms,landonwilkins/canvas-lms